/* ===== Variables & Reset ===== */
/* Uses system font stack for instant rendering — no external font loading */
/* Apple Design: font-optical-sizing, size-specific tracking, Apple cubic-bezier */

:root {
  /* Layout tokens */
  --radius: 20px;
  --radius-sm: 14px;
  --space: 16px;
  --space-lg: 28px;
  --max: 70%;

  /* Apple transition curve — critically damped spring approximation */
  --apple-ease: cubic-bezier(0.2, 0, 0, 1);
  --apple-duration: 0.4s;
  --apple-duration-fast: 0.25s;

  /* Light theme (default) */
  --bg: #f0f4f8;
  --fg: #1e293b;
  --primary: #0ea5e9;

  --color_text: #334155;
  --color_text_2: #0284c7;
  --color_hover_nav_a: rgba(14, 165, 233, 0.08);

  --back_col: #f0f4f8;
  --section_col: #ffffff;
  --back_service_list: rgba(14, 165, 233, 0.05);

  --bg_link_btn: rgba(14, 165, 233, 0.08);
  --border: rgba(14, 165, 233, 0.12);
  --border-color: rgba(14, 165, 233, 0.12);
  --border-glass: rgba(0, 0, 0, 0.06);

  --shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-color: rgba(0, 0, 0, 0.08);
  --header-bg: rgba(240, 244, 248, 0.72);
  --glass-blur: blur(20px) saturate(180%);
  --card-light-edge: 1px solid rgba(255, 255, 255, 0.5);
}

/* Respecte les préférences système */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0f1a;
    --fg: #e2e8f0;
    --primary: #38bdf8;

    --color_text: #cbd5e1;
    --color_text_2: #38bdf8;
    --color_text_3: #7dd3fc;
    --color_hover_nav_a: rgba(56, 189, 248, 0.08);

    --back_col: #0a0f1a;
    --section_col: #111827;
    --back_service_list: rgba(56, 189, 248, 0.06);

    --bg_link_btn: rgba(56, 189, 248, 0.08);
    --border: rgba(56, 189, 248, 0.10);
    --border-color: rgba(56, 189, 248, 0.10);
    --border-glass: rgba(56, 189, 248, 0.08);

    --shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
    --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.35);
    --shadow-color: rgba(0, 0, 0, 0.35);
    --header-bg: rgba(10, 15, 26, 0.78);
    --card-light-edge: 1px solid rgba(255, 255, 255, 0.06);
  }
}

/* Explicit dark theme (toggled by button) */
[data-theme="dark"] {
  --bg: #0a0f1a;
  --fg: #e2e8f0;
  --primary: #38bdf8;

  --color_text: #cbd5e1;
  --color_text_2: #38bdf8;
  --color_text_3: #7dd3fc;
  --color_hover_nav_a: rgba(56, 189, 248, 0.08);

  --back_col: #0a0f1a;
  --section_col: #111827;
  --back_service_list: rgba(56, 189, 248, 0.06);

  --bg_link_btn: rgba(56, 189, 248, 0.08);
  --border: rgba(56, 189, 248, 0.10);
  --border-color: rgba(56, 189, 248, 0.10);
  --border-glass: rgba(56, 189, 248, 0.08);

  --shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-color: rgba(0, 0, 0, 0.35);
  --header-bg: rgba(10, 15, 26, 0.78);
  --card-light-edge: 1px solid rgba(255, 255, 255, 0.06);
}

/* Explicit light theme override */
[data-theme="light"] {
  --bg: #f0f4f8;
  --fg: #1e293b;
  --primary: #0ea5e9;

  --color_text: #334155;
  --color_text_2: #0284c7;
  --color_hover_nav_a: rgba(14, 165, 233, 0.08);

  --back_col: #f0f4f8;
  --section_col: #ffffff;
  --back_service_list: rgba(14, 165, 233, 0.05);

  --bg_link_btn: rgba(14, 165, 233, 0.08);
  --border: rgba(14, 165, 233, 0.12);
  --border-color: rgba(14, 165, 233, 0.12);
  --border-glass: rgba(0, 0, 0, 0.06);

  --shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-color: rgba(0, 0, 0, 0.08);
  --header-bg: rgba(240, 244, 248, 0.72);
  --card-light-edge: 1px solid rgba(255, 255, 255, 0.5);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* ===== Base Styles ===== */
/* Apple Design §15: system font, optical sizing, comfortable body leading */
html {
  scroll-behavior: smooth;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Ubuntu, 'Helvetica Neue', Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  font-optical-sizing: auto;
  letter-spacing: 0;
  color: var(--color_text);
  background: var(--back_col);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Smooth dark/light theme switch */
  transition: background-color 0.5s var(--apple-ease), color 0.4s var(--apple-ease);
}

/* Add theme-transitioning class to enable smooth transitions on all elements */
body.theme-transitioning,
body.theme-transitioning * {
  transition: background-color 0.4s var(--apple-ease),
    color 0.3s var(--apple-ease),
    border-color 0.3s var(--apple-ease),
    box-shadow 0.3s var(--apple-ease) !important;
}

p strong,
h1,
h2 {
  color: var(--fg);
}

/* Apple Design §15: Tracking negative on headings, tight leading */
h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

p {
  font-size: 17px;
}

p strong {
  font-size: 18px;
  font-weight: 600;
}

/* ===== Layout ===== */
.container {
  max-width: var(--max);
  margin-inline: auto;
  padding: 0 var(--space);
}

.stack-lg>* {
  margin-block: var(--space-lg);
}

/* ===== Card ===== */
/* Apple Design §12: subtle light-catching edge, contextual shadows */
.card {
  background: var(--section_col);
  border: 1px solid var(--border-glass);
  border-top: var(--card-light-edge);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow);
  transition: box-shadow var(--apple-duration) var(--apple-ease),
    transform var(--apple-duration) var(--apple-ease);
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

/* ===== Header (Sticky + Glass) ===== */
/* Apple Design §12: translucent material with saturate(180%), luminous border */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
  padding-block: 14px;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  /* Luminous top edge — light catching the material */
  border-bottom: 1px solid var(--border-glass);
  border-top: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  transition: opacity var(--apple-duration-fast) var(--apple-ease);
}

.brand:hover {
  opacity: 0.85;
}

/* Apple Design §1: respond on pointer-down — instant press feedback */
.brand:active {
  opacity: 0.7;
  transition: opacity 100ms ease-out;
}

.logo {
  width: 88px;
  height: 88px;
  flex-shrink: 0;
}

/* Round clinic logo in the header */
.logo-img {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  transition: transform var(--apple-duration) var(--apple-ease);
}

.brand:hover .logo-img {
  transform: scale(1.06);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text strong {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-text span {
  font-size: 14px;
  letter-spacing: 0.01em;
}

/* ===== Navigation ===== */
.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav a {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  font-size: 16px;
  font-weight: 500;
  transition: all var(--apple-duration-fast) var(--apple-ease);
  border: 1px solid transparent;
}

.nav a.active,
.nav a:hover {
  background-color: var(--color_hover_nav_a);
  border: 1px solid var(--border);
}

/* Apple Design §1: instant press feedback on nav links */
.nav a:active {
  transform: scale(0.96);
  transition: transform 100ms ease-out;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--color_hover_nav_a);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding: 0;
  transition: all var(--apple-duration-fast) var(--apple-ease);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg_link_btn);
  transform: scale(1.06);
  border-color: var(--primary);
}

/* Apple Design §1: scale down on press, not just hover */
.theme-toggle:active {
  transform: scale(0.92);
  transition: transform 100ms ease-out;
}

/* ===== Language Switcher ===== */
.translate_in_eng_or_bs {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  background-color: var(--color_hover_nav_a);
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: all var(--apple-duration-fast) var(--apple-ease);
  margin-left: 4px;
}

.translate_in_eng_or_bs:hover {
  background-color: var(--bg_link_btn);
  transform: scale(1.04);
  box-shadow: var(--shadow);
}

/* Apple Design §1: press feedback */
.translate_in_eng_or_bs:active {
  transform: scale(0.94);
  transition: transform 100ms ease-out;
}

.translate_in_eng_or_bs .flag-icon {
  width: 32px;
  height: 22px;
  display: inline-block;
  vertical-align: middle;
  transition: transform var(--apple-duration) var(--apple-ease);
  overflow: hidden;
  border-radius: 3px;
}

.translate_in_eng_or_bs:hover .flag-icon {
  transform: scale(1.08);
}

/* ===== Facebook Button ===== */
.facebook-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  background: linear-gradient(135deg, #3b5998, #4267B2);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 600;
  transition: all var(--apple-duration) var(--apple-ease);
  font-size: 16px;
  width: 60%;
  box-sizing: border-box;
  box-shadow: 0 4px 16px rgba(59, 89, 152, 0.25);
}

.facebook-button:hover {
  background: linear-gradient(135deg, #2d4373, #365899);
  transform: scale(1.02);
  box-shadow: 0 6px 24px rgba(59, 89, 152, 0.35);
}

/* Apple Design §1: press feedback */
.facebook-button:active {
  transform: scale(0.97);
  transition: transform 100ms ease-out;
}

.facebook-button i {
  margin-right: 10px;
  transition: transform var(--apple-duration) var(--apple-ease);
}

.facebook-button:hover i {
  transform: rotate(360deg);
}

/* ===== Hero & Content ===== */
.hero {
  text-align: center;
  padding: 56px var(--space-lg) 48px;
}

.hero .lead {
  margin-top: 12px;
  color: var(--color_text_2);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.5;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
  justify-content: center;
}

/* ===== Primary & Secondary Buttons ===== */
/* Apple Design §1: respond on pointer-down with scale(0.97) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, #0ea5e9, #06b6d4);
  color: white !important;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  transition: transform var(--apple-duration-fast) var(--apple-ease),
    box-shadow var(--apple-duration-fast) var(--apple-ease);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 28px rgba(14, 165, 233, 0.35);
}

.btn-primary:active {
  transform: scale(0.97);
  transition: transform 100ms ease-out;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--color_text_2);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: all var(--apple-duration-fast) var(--apple-ease);
}

.btn-secondary:hover {
  background: var(--color_hover_nav_a);
  transform: scale(1.03);
}

.btn-secondary:active {
  transform: scale(0.97);
  transition: transform 100ms ease-out;
}

/* ===== Grid ===== */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
  justify-content: center;
}

/* ===== Schedule Items (replaces => arrows) ===== */
.schedule-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  margin: 8px 0;
  background: var(--back_service_list);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  transition: transform var(--apple-duration-fast) var(--apple-ease),
    box-shadow var(--apple-duration-fast) var(--apple-ease);
}

.schedule-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow);
}

.schedule-item .schedule-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.schedule-item .schedule-text {
  flex: 1;
}

/* ===== Stat Cards (quick info section) ===== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.stat-card {
  text-align: center;
  padding: 24px 16px;
  background: var(--back_service_list);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: transform var(--apple-duration) var(--apple-ease),
    box-shadow var(--apple-duration) var(--apple-ease);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.stat-card .stat-icon {
  font-size: 32px;
  display: block;
  margin-bottom: 8px;
}

.stat-card .stat-value {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat-card .stat-label {
  font-size: 14px;
  color: var(--color_text_2);
  margin-top: 4px;
  letter-spacing: 0.01em;
}

/* ===== Service List ===== */
.service-list {
  display: grid;
  gap: 14px;
  padding-left: 0;
  list-style: none;
}

.service-list li {
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 16px;
  background: var(--back_service_list);
  transition: transform var(--apple-duration-fast) var(--apple-ease),
    box-shadow var(--apple-duration-fast) var(--apple-ease);
}

.service-list li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
  border-left-color: #06b6d4;
}

/* Apple Design §1: press feedback on service items */
.service-list li:active {
  transform: scale(0.99);
  transition: transform 100ms ease-out;
}

.service-list li strong {
  font-size: 19px;
  display: block;
}

.service-list li p {
  font-size: 15px;
  margin-top: 4px;
  opacity: 0.8;
}

/* ===== Map ===== */
.map-wrap {
  position: relative;
  aspect-ratio: 16/9;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.06);
}

.map-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ===== Contact Page Specific ===== */
.contact.grid-2 {
  align-items: start;
  margin: 0 auto;
  gap: var(--space-lg);
}

.contact.grid-2>div {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px;
  height: 100%;
}

.contact.grid-2 p {
  width: 100%;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact.grid-2 .facebook-button {
  width: 100%;
  max-width: none;
  margin: 10px 0;
  padding: 14px 24px;
}

.contact-list {
  border: 1px solid var(--border);
  border-radius: 16px;
  margin: auto;
  width: 100%;
  padding: 16px;
  background: var(--back_service_list);
  margin-bottom: 14px;
  transition: box-shadow var(--apple-duration-fast) var(--apple-ease),
    transform var(--apple-duration-fast) var(--apple-ease);
}

.contact-list:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.contact-list strong {
  font-size: 18px;
  color: var(--fg);
}

/* ===== Footer ===== */
.site-footer {
  padding: 28px 0;
  margin-top: 20px;
}

.muted {
  color: var(--color_text_2);
}

/* ===== Language Visibility ===== */
html[data-lang="bs"] .lang-en {
  display: none;
}

html[data-lang="en"] .lang-bs {
  display: none;
}

/* ===== Images ===== */
img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Images inside cards (e.g. about page photo) — exclude header logo */
.card>img,
section img:not(.logo-img) {
  width: 100%;
  border-radius: 16px;
  margin-top: var(--space);
}

/* ===== Link Buttons ===== */
.link-btn {
  color: var(--color_text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  background: var(--bg_link_btn);
  border: 1px solid var(--border-color);
  transition: transform var(--apple-duration-fast) var(--apple-ease),
    box-shadow var(--apple-duration-fast) var(--apple-ease);
  overflow: hidden;
  width: 100%;
  max-width: 300px;
  margin: 8px;
  font-size: 16px;
  font-weight: 500;
}

.link-btn:focus {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.link-btn:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

/* Apple Design §1: press feedback */
.link-btn:active {
  transform: scale(0.97);
  transition: transform 100ms ease-out;
}

/* Icons */
.icon {
  width: 22px;
  height: 22px;
  display: inline-block;
  transition: transform var(--apple-duration) var(--apple-ease);
}

.link-btn:hover .icon {
  transform: rotate(360deg);
}

/* ===== Welcome ID ===== */
[id=Welcome] {
  text-align: center;
}

section.grid-2.card {
  margin: 0 auto;
}

/* ===== Fade-in Animation ===== */
/* Apple Design §4: critically-damped spring curve */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--apple-ease), transform 0.5s var(--apple-ease);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay — set dynamically by animations.js for more Apple-like timing */
.stack-lg>.fade-in:nth-child(2) {
  transition-delay: 0.08s;
}

.stack-lg>.fade-in:nth-child(3) {
  transition-delay: 0.16s;
}

.stack-lg>.fade-in:nth-child(4) {
  transition-delay: 0.24s;
}

/* ===== Address semantic styling ===== */
address {
  font-style: normal;
}

/* ===== Accessibility ===== */
/* Apple Design §14: reduced-motion — opacity cross-fade only, no transforms */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.2s !important;
  }

  .fade-in {
    transform: none !important;
    transition: opacity 0.2s ease !important;
  }

  .fade-in.visible {
    transform: none !important;
  }

  .btn-primary:hover,
  .btn-primary:active,
  .btn-secondary:hover,
  .btn-secondary:active,
  .nav a:active,
  .theme-toggle:hover,
  .theme-toggle:active,
  .translate_in_eng_or_bs:hover,
  .translate_in_eng_or_bs:active,
  .link-btn:hover,
  .link-btn:active,
  .facebook-button:hover,
  .facebook-button:active,
  .service-list li:hover,
  .service-list li:active,
  .schedule-item:hover,
  .stat-card:hover,
  .card:hover {
    transform: none !important;
  }
}

/* Apple Design §14: reduced transparency — solid backgrounds */
@media (prefers-reduced-transparency: reduce) {
  .site-header {
    background: var(--back_col) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}

/* Apple Design §14: high contrast — clear borders and solid backgrounds */
@media (prefers-contrast: more) {
  .card {
    border: 2px solid var(--fg) !important;
  }

  .site-header {
    background: var(--back_col) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border-bottom: 2px solid var(--fg) !important;
  }

  .nav a.active {
    border: 2px solid var(--primary) !important;
  }

  .schedule-item,
  .stat-card,
  .contact-list {
    border: 2px solid var(--fg) !important;
  }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  :root {
    --max: 92%;
  }

  .site-header {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding-block: 12px;
  }

  .nav {
    justify-content: center;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 36px var(--space);
  }

  .brand-text strong {
    font-size: 18px;
  }

  .brand-text span {
    font-size: 13px;
  }

  .facebook-button {
    width: 100%;
  }

  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  :root {
    --max: 96%;
  }

  .nav a {
    padding: 8px 10px;
    font-size: 14px;
  }

  .btn-primary,
  .btn-secondary {
    padding: 12px 20px;
    font-size: 14px;
    width: 100%;
    justify-content: center;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .stat-card {
    padding: 18px 12px;
  }
}